Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green.

As scientists and renewable-energy developers continue to make advances in solar and wind technology, it's becoming more apparent than ever that clean energy doesn't just represent the future -- it's also the present. Spain proved that this week, when the Mediterranean country announced that it produced an impressive 54 percent of its total energy in April from renewable sources. Researchers at Yale University discovered a way to boost the efficiency of solar cells by 38 percent simply by coating them with a fluorescent dye. In another promising development, scientists at the University of Georgia developed a way to harness the photosynthetic process to generate clean energy from plants. And at a conference in California, NRG unveiled a mini prefabricated solar canopy that could soak up rays in any garden or commercial lot.